UE Resource Reservation for 5G Sidelink Efficiency
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Solution Overview
Problem
In 5G NR systems, user equipment (UE) faces low transmission efficiency when excluding transmission resources reserved by other UE for various types of data, leading to inefficient resource utilization in sidelink transmissions.
Innovation Solution
A method and device for UE to obtain target information indicating resource reserving priorities of different data types, allowing determination of whether to use a reserved resource for transmitting secondary data based on the priorities, thereby improving resource allocation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE excludes all transmission resources reserved by another UE for various types of data, then resource collision is avoided, but transmission efficiency of transmission resources deteriorates
Solution Approach 1:
The patent segments transmission resources by data type (broadcast, multicast, unicast) and applies different exclusion rules to each segment. UE only excludes resources for the same data type, allowing resources for other types to be reused, thus resolving the contradiction between avoiding collisions and maintaining efficiency
Solution Approach 2:
Instead of excluding all reserved resources as in conventional methods, the patent inverts the approach by only excluding resources that would cause actual conflicts (same data type), while allowing reuse of resources for different data types, thereby improving transmission efficiency without sacrificing reliability
2Ease of operation
If UE simply excludes resources of various services, then resource allocation is simplified, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent divides resources into segments based on data types and applies targeted exclusion rules to each segment. This maintains operational simplicity by providing clear rules for each type while improving utilization by allowing cross-type resource reuse
Solution Approach 2:
The patent changes the exclusion criterion from a blanket rule (exclude all reserved resources) to a selective rule (exclude only same-type reserved resources). This parameter change in the exclusion logic simplifies operation while dramatically improving resource utilization efficiency
Data Source
AI summary
The embodiments of this application disclose a resource reserving method and a device and relate to the field of communications technologies. The method includes: obtaining target information, where the target information includes at least one of first information and second information, the first information is used to indicate a resource reserving priority of first data, the second information is used to indicate a resource reserving priority of second data, the first data is data that occupies a first resource, and the second data is to-be-transmitted data; and according to the target information, determining whether to use the first resource as a candidate resource for transmitting the second data. The embodiments of this application are applied to a scenario where UE reserves a resource for to-be-transmitted data.